High On Fire – de Vermis Mysteriis is the sixth studio album by metal band High on Fire. Cover art was done by tattoo artist Tim Lehii. The album\’s title (translation: \”The Mysteries of the Worm,\”) is a nod to a fictional grimoire conceived by the late, great Psycho author Robert Bloch in 1935 and later incorporated into horror master H.P. Lovecraft\’s renowned Cthulu Mythos.